The 1857 revolt in India, also known as the Indian Mutiny or First War of Independence, began as a mutiny of sepoys in the British East India Company's army against new equipment and policies undermining Indian religions. It erupted into broader rebellions across northern and central India led by rulers and civilians of different classes and groups opposed to British colonial rule. The immediate causes included the rumored greasing of cartridges with cow and pig fat offensive to Hindus and Muslims, as well as wider political, economic, military, social, and religious grievances. In the aftermath, the British government took direct control of India from the East India Company and instituted reforms while also punishing perceived mutiny leaders and participants.